CN212429125U

CN212429125U - Air compressor

Info

Publication number: CN212429125U
Application number: CN202020607854.7U
Authority: CN
Inventors: 杨昌荣; 陈立君; 陈鑫波; 罗斌
Original assignee: Zhejiang Lawston Technology Co ltd
Current assignee: Zhejiang Lawston Technology Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-01-29
Anticipated expiration: 2030-04-21

Abstract

The utility model provides an air compressor belongs to air compressor technical field. It has solved current air compressor machine radiating effect and has remained to improve, scald technical problem such as staff easily. The front side, the rear side and the inner side of the connecting portion of the air compressor are provided with upper air outlets, the side wall of the inner end portion of the box body is provided with a lower air outlet, the front side of the connecting portion is provided with an air outlet, the outer end of the box body is detachably fixed with a cover body, the lower end portion of the cover body is provided with an air inlet matched with the box body, and the upper end portion of the cover body is inwards bent to form a bent portion capable of covering the upper end face of the. The utility model can radiate the air compressor in all directions through the design of the valve plate structure, the upper air outlet, the lower air outlet and the air outlet, the radiating effect is better, and the radiating speed is faster; simultaneously, the design of kink can shelter from the up end of cylinder, avoids the staff mistake to touch and leads to scalding, is favorable to improving the security of this air compressor machine.

Description

Air compressor

Technical Field

The utility model belongs to the technical field of air compressor, refer in particular to an air compressor machine.

Background

An air compressor is a device for compressing gas, and a device for converting mechanical energy of a prime mover (usually an electric motor or a diesel engine) into gas pressure energy is a core device of a pneumatic system. In the existing piston type air compressor, a motor directly drives the compressor to enable a crankshaft to generate rotary motion and drive a connecting rod to enable a piston to generate reciprocating motion so as to cause volume change of an air cylinder; because of the change of the pressure in the cylinder, the air enters the cylinder through the air filter by the air inlet valve, and in the compression stroke, the compressed air enters the air storage tank through the exhaust pipe and the check valve under the action of the exhaust valve due to the reduction of the volume of the cylinder.

The utility model discloses a direct-connected air compressor blade, which comprises a blade body, the fan blade body comprises a rotor shaft sleeve, the rotor shaft sleeve is arranged on the rotor shaft, a mounting hole matched with the rotor shaft is arranged at the position, close to the middle, of the front end surface of the rotor shaft sleeve, the surface of the rotor shaft sleeve is annularly provided with sector blades, the sector blades are provided with 9 blades, the fan-shaped blades and the rotor shaft sleeve are of an integrated structure, fan blade fixing sleeves are arranged at positions among the outer side surfaces of 9 fan-shaped blades, the fan blade fixing sleeve and the fan-shaped blades are of an integrated structure, straight blades are annularly arranged at the position of the surface of the fan blade fixing sleeve, and 15 straight blades are arranged; the fan blade that the device was through being provided with right angle and fan-shaped combination both can be to the motor heat dissipation, can be to heat dissipation such as cylinder, cylinder cap again, the radiating effect of air compressor machine that improves greatly.

Although above-mentioned device can play certain radiating effect to motor, cylinder and cylinder cap, but tightly be limited to the cylinder cap terminal surface under the cylinder cap and dispel the heat, does not have what radiating effect to the fin that the cylinder cap upper end set up is because direct expose outside and the temperature is higher in the course of the work, and the staff is scalded easily when touching by mistake, and the security is relatively poor.

Disclosure of Invention

Not enough to prior art exists, the utility model aims to provide an air compressor machine that the radiating effect is better, the security is higher.

The purpose of the utility model can be realized by the following technical proposal:

an air compressor comprises a motor, a cylinder and a cylindrical box body, wherein the inner end part of the box body is connected with the end part of the motor, a connecting part communicated with the box body is formed at the upper end of the box body, the connecting part is connected with the cylinder, a radiating fan and a connecting rod for driving the cylinder to work are arranged in the box body, the lower end part of the connecting rod is rotatably connected with a driving shaft of the motor through an eccentric wheel, the radiating fan is arranged outside the eccentric wheel and is fixedly connected with the driving shaft of the motor, the air compressor is characterized in that the front side surface, the rear side surface and the inner side surface of the connecting part are respectively provided with an upper air outlet hole, the side wall of the inner end part of the box body is provided with a lower air outlet hole, the front side surface of the connecting part is provided with an air outlet communicated with an inner cavity of the connecting part, the upper end of the cover body is bent inwards to form a bent part capable of covering the upper end face of the cylinder.

The air compressor cools the motor and the air cylinder by blowing air into the box body through the cooling fan, air blown out by the cooling fan penetrates through the box body and is discharged from the lower air outlet hole at the inner end part of the box body to form a first air flow channel, and the air flow passing through the first air flow channel can take away heat at the connecting part of the connecting rod and the driving shaft and on the end surface of the motor, so that the aim of cooling the lower end part of the connecting rod and the end surface of the motor is fulfilled; the air blown out by the heat dissipation fan enters the connecting part and is discharged from the upper air outlet hole to form a second air flow channel, and the air flow passing through the second air flow channel can take away the heat on the lower end face and the outer side face of the air cylinder so as to achieve the purpose of dissipating the heat of the lower end part of the air cylinder; a part of gas blown by the cooling fan directly enters between the upper end face of the cylinder and the bent part along a gap between the cover body and the outer side face of the box body, and a part of the gas enters between the cover body and the outer side face of the box body through the air outlet after entering the connecting part and finally enters between the upper end face of the cylinder and the bent part; the first air flow channel, the second air flow channel and the third air flow channel are matched, so that the air compressor can be radiated in an all-around manner, the radiating effect is good, and the radiating speed is high; further, because the air compressor machine during operation, the temperature of cylinder up end is higher, the design of above-mentioned kink can shelter from the up end of cylinder, avoids the staff mistake to touch and leads to scalding, is favorable to improving the security of this air compressor machine.

In an air compressor of the aforesaid, the box has two and symmetry to be fixed in both ends about the motor, and every box all links to each other with a cylinder.

In the above air compressor, a plurality of mounting protrusions are formed on the inner side surface of the inner end portion of the box body, the length direction of the mounting protrusions is parallel to the central axis direction of the box body, the mounting protrusions are arranged at intervals along the circumferential direction of the inner side surface of the box body, and a clamping groove for mounting a motor is formed in the inner end portion of the mounting protrusions.

The box of this air compressor machine passes through the draw-in groove to be connected with the motor, and the assembly is simpler, and simultaneously, the bellied design of installation makes box and motor fixed back, can form the clearance between the inside wall of box and motor casing's the lateral wall, and the gas part in the first air runner can be discharged through this clearance, follows the gas of this clearance combustion gas can take away the part with the heat on the motor casing, helps improving the radiating effect of motor.

In an above-mentioned air compressor machine, the exhaust vent is located the front side and the rear side of box and is located between two adjacent installation archs down.

In foretell air compressor machine, be fixed with the vertical radiating fin of polylith on the up end of cylinder, radiating fin sets up and radiating fin's length direction and the axis direction of box is parallel along the fore-and-aft direction interval, be equipped with the polylith deflector on the downside of kink, the deflector is located between two adjacent radiating fin, both sides all buckle down to form the baffle around the kink.

The design of the radiating fins can increase the radiating area of the upper end surface of the cylinder, and is beneficial to improving the radiating efficiency; the design of the guide plate can prevent the gas in the third air flow channel from being always attached to the lower end surface of the bent part, so that the gas can sink to increase the contact with the radiating fins, and the radiating efficiency is improved; the design of baffle can avoid the staff from touching radiating fin by mistake from the side, is favorable to improving the security.

In an above-mentioned air compressor machine, be equipped with the louvre that runs through the kink from top to bottom between two adjacent deflector, the louvre is rectangular form and its length direction is parallel with the length direction of deflector.

Above-mentioned radiating fin is located the louvre under, the gas from the third air runner enters into between the radiating fin and flows along radiating fin's length direction, the air that is close to radiating fin at this in-process is heated and is risen at this in-process, directly flow from the louvre, avoid the air can't discharge after being heated and continue to influence the radiating effect of radiating fin tip along the inside flow of radiating fin, consequently, the design of louvre can in time be discharged by the hot-air that radiating fin heating formed, be favorable to improving the radiating effect.

In foretell air compressor machine, be provided with the hole of induced drafting along vertical direction interval on the cover body between air intake and the kink, the lower limb of the hole of induced drafting inwards extends the shaping and has the interior high air suction plate of low outside.

Under the effect of the cooling fan, an ascending air flow with a high flow speed is formed between the cover body and the front side face of the box body, and according to the jet effect, air outside the air suction hole can be sucked by the ascending air flow, so that the air quantity in the third air flow channel is increased, and the cooling effect at the cooling fins is favorably improved.

In foretell air compressor machine, the cylinder includes cylinder cap, valve plate and cylinder body, cylinder cap and cylinder body pass through valve plate sealing connection, be equipped with the inlet port with the inlet chamber intercommunication of cylinder cap on the valve plate and with the venthole of the venthole intercommunication of cylinder cap, radiating fin locates the upper end of cylinder cap, be equipped with the piston in the cylinder body, the lower extreme of piston links to each other with the upper end of connecting rod.

In foretell air compressor machine, the upper end of going up the exhaust vent is located the downside on border on the cylinder body, the lower extreme of going up the exhaust vent is located the downside on border under the cylinder body, be equipped with the recess that runs through the inside wall of connecting portion along the axis direction of box on the up end of connecting portion inside wall.

The design of air outlet position makes the air of cooling down for piston and cylinder body lower extreme can directly follow the exhaust vent and discharge, the gaseous meeting of cooling down for valve plate and cylinder body upper end can be discharged along the inside wall of the outer wall runner connecting portion of cylinder body and from the recess under the effect of air current, if the position of going up the exhaust vent sets up too high, gaseous direct last exhaust vent from the side around the connecting portion, the inside wall department that can't flow to connecting portion cools down the cylinder body and the valve plate of this department, if remove groove structure, then the part is heated the high-temperature gas that forms can pile up the unable in time discharge in the downside department of valve plate, influence holistic radiating effect.

Compared with the prior art, the utility model discloses a technological effect does:

the air compressor can radiate heat in all directions by designing the valve plate structure and the positions of the upper air outlet hole, the lower air outlet hole and the air outlet, and has better heat radiation effect and higher heat radiation speed; simultaneously, because the air compressor machine during operation, the temperature of cylinder up end is higher, the design of above-mentioned kink can shelter from the up end of cylinder, avoids the staff mistake to touch and leads to scalding, is favorable to improving the security of this air compressor machine.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an overall sectional view of the present invention.

Fig. 3 is a first schematic view of the connection structure between the cover and the box of the present invention.

Fig. 4 is a schematic view of a connection structure between the cover and the box of the present invention.

Fig. 5 is an explosion structure diagram of the cover body, the box body and the cylinder of the present invention.

Fig. 6 is a schematic view of the connection structure between the cylinder and the box body of the present invention.

Fig. 7 is a cross-sectional view of the cylinder and the housing of the present invention.

Fig. 8 is a schematic structural diagram of the box body of the present invention.

In the figure, 1, a motor; 11. a drive shaft; 2. a cylinder; 21. a cylinder cover; 211. an air inlet cavity; 212. an air outlet cavity; 213. a heat dissipating fin; 22. a valve plate; 221. an air inlet; 222. an air outlet; 23. a cylinder body; 231. a piston; 3. a box body; 31. a lower air outlet hole; 32. mounting a boss; 321. a card slot; 4. a connecting portion; 41. an upper air outlet hole; 42. an air outlet; 43. a groove; 5. a cover body; 51. an air inlet; 52. a bending section; 521. a guide plate; 522. a baffle plate; 523. heat dissipation holes; 53. an air suction hole; 54. a suction plate; 6. a heat radiation fan; 7. a connecting rod; 8. an eccentric wheel.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The air compressor comprises a motor 1, a cylinder 2 and a cylindrical box 3, wherein the inner end part of the box 3 is connected with the end part of the motor 1, the upper end of the box 3 is formed with a connecting part 4 communicated with the box 3, the connecting part 4 is connected with the cylinder 2, a heat radiation fan 6 and a connecting rod 7 for driving the cylinder 2 to work are arranged in the box 3, the lower end part of the connecting rod 7 is rotatably connected with a driving shaft 11 of the motor 1 through an eccentric wheel 8, the heat radiation fan 6 is arranged outside the eccentric wheel 8 and is fixedly connected with the driving shaft 11 of the motor 1, the front side surface, the back side surface and the inner side surface of the connecting part 4 are respectively provided with an upper air outlet hole 41, the side wall of the inner end part of the box 3 is provided with a lower air outlet hole 31, the front side surface of the connecting part 4 is provided with an air outlet 42 communicated with the inner cavity of the connecting part 4, the upper end of the cover body 5 is bent inwards to form a bent part 52 capable of covering the upper end face of the cylinder 2; further, the box 3 has two and the symmetry is fixed in both ends about motor 1, and every box 3 all links to each other with a cylinder 2.

The air compressor cools the motor 1 and the cylinder 2 by blowing air into the box body 3 through the cooling fan 6, the air blown out by the cooling fan 6 passes through the box body 3 and is discharged from the lower air outlet hole 31 at the inner end part of the box body 3 to form a first air flow channel, as shown by an arrow A in figure 6, the air flow passing through the first air flow channel can take away the heat at the connecting part of the connecting rod 7 and the driving shaft 11 and the heat on the end surface of the motor 1, and the purpose of cooling the lower end part of the connecting rod 7 and the end surface of the motor 1 is achieved; the air blown by the heat dissipation fan 6 enters the connection portion 4 and is discharged from the upper air outlet 41 to form a second air flow channel, as shown by an arrow B in fig. 7, the air flow passing through the second air flow channel can take away the heat on the lower end surface and the outer side surface of the cylinder 2, so as to achieve the purpose of dissipating the heat of the lower end portion of the cylinder 2; a part of the air blown by the cooling fan 6 directly enters between the upper end surface of the cylinder 2 and the bent portion 52 along a gap between the cover 5 and the outer side surface of the box 3, and a part of the air enters between the cover 5 and the outer side surface of the box 3 through the air outlet 42 after entering the connecting portion 4 and finally enters between the upper end surface of the cylinder 2 and the bent portion 52, wherein the path through which the two parts of the air flow pass is a third air flow channel, as shown by an arrow C in fig. 2, the air flow passing through the third air flow channel can take away the heat at the upper end portion of the cylinder 2, so that the purpose of cooling the upper end portion of the cylinder 2 is achieved; the first air flow channel, the second air flow channel and the third air flow channel are matched, so that the air compressor can be radiated in an all-around manner, the radiating effect is good, and the radiating speed is high; further, because the air compressor machine during operation, the temperature of cylinder 2 up end is higher, the design of above-mentioned kink 52 can shelter from the up end of cylinder 2, avoids the staff mistake to touch and leads to scalding, is favorable to improving the security of this air compressor machine.

As shown in fig. 4 and 8, a plurality of mounting protrusions 32 are formed on the inner side surface of the inner end portion of the box body 3, the length direction of the mounting protrusions 32 is parallel to the central axis direction of the box body 3, the mounting protrusions 32 are arranged at intervals along the circumferential direction of the inner side surface of the box body 3, and the inner end portion of the mounting protrusions 32 is provided with a slot 321 for mounting the motor 1; the lower air outlet 31 is arranged on the front side and the rear side of the box body 3 and is positioned between two adjacent mounting bulges 32. This air compressor machine's box 3 passes through draw-in groove 321 and is connected with motor 1, and the assembly is simpler, and simultaneously, the design of installation arch 32 makes box 3 and motor 1 fixed back, can form the clearance between the inside wall of box 3 and the lateral wall of motor 1 casing, and the gas portion in the first air runner can be discharged through this clearance, can take away the part with the heat on the motor 1 casing from this clearance combustion gas, helps improving motor 1's radiating effect.

As shown in fig. 3-7, a plurality of vertical heat dissipating fins 213 are fixed on the upper end surface of the cylinder 2, the heat dissipating fins 213 are arranged at intervals along the front-rear direction, the length direction of the heat dissipating fins 213 is parallel to the central axis direction of the box 3, a plurality of guide plates 521 are arranged on the lower side surface of the bent portion 52, the guide plates 521 are arranged between two adjacent heat dissipating fins 213, and the front side and the rear side of the bent portion 52 are bent downward to form a baffle 522; a heat dissipation hole 523 for penetrating the bending part 52 vertically is provided between two adjacent guide plates 521, the heat dissipation hole 523 is long and the length direction thereof is parallel to the length direction of the guide plate 521. The design of the heat dissipation fins 213 can increase the heat dissipation area of the upper end surface of the cylinder 2, which is beneficial to improving the heat dissipation efficiency; the design of the guide plate 521 can prevent the air in the third air flow channel from being always tightly attached to the lower end surface of the bent portion 52, so that the air can sink and contact with the heat dissipation fins 213, thereby improving the heat dissipation efficiency; the design of the baffle 522 can prevent workers from mistakenly touching the radiating fins 213 from the side, which is beneficial to improving the safety; the heat dissipation fins 213 are located right below the heat dissipation holes 523, the air in the third air flow channel enters the space between the heat dissipation fins 213 and flows along the length direction of the heat dissipation fins 213, the air near the heat dissipation fins 213 is heated and rises in the process, and the air directly flows out of the heat dissipation holes 523, so that the problem that the air cannot be discharged after being heated and continuously flows inwards along the heat dissipation fins 213 to influence the heat dissipation effect of the inner end parts of the heat dissipation fins 213 is avoided, therefore, the design of the heat dissipation holes 523 can timely discharge the hot air formed by heating the heat dissipation fins 213, and the improvement of the heat dissipation effect is facilitated.

As shown in fig. 2 and 3, air suction holes 53 are formed in the cover 5 between the air inlet 51 and the bending portion 52 at intervals along the vertical direction, and an air suction plate 54 with a low outer side and a high inner side is formed by extending the lower edge of the air suction hole 53 inward. Under the action of the heat dissipation fan 6, an ascending air flow with a fast flow speed is formed between the cover 5 and the front side surface of the box 3, and according to the jet effect, the air outside the air suction hole 53 is sucked by the ascending air flow, so that the air quantity in the third air flow channel is increased, and the heat dissipation effect at the heat dissipation fins 213 is favorably improved.

As shown in fig. 2, 5, 7 and 8, the cylinder 2 includes a cylinder cover 21, a valve plate 22 and a cylinder body 23, the cylinder cover 21 and the cylinder body 23 are hermetically connected through the valve plate 22, the valve plate 22 is provided with an air inlet 221 communicated with an air inlet cavity 211 of the cylinder cover 21 and an air outlet 222 communicated with an air outlet cavity 212 of the cylinder cover 21, a heat dissipation fin 213 is provided at the upper end of the cylinder cover 21, a piston 231 is provided in the cylinder body 23, and the lower end of the piston 231 is connected with the upper end of the connecting rod 7; the upper end of the upper air outlet 41 is located at the lower side of the upper edge of the cylinder 23, the lower end of the upper air outlet 41 is located at the lower side of the lower edge of the cylinder 23, and a groove 43 for penetrating the inner side wall of the connecting part 4 along the axial direction of the box body 3 is arranged on the upper end surface of the inner side wall of the connecting part 4. The design of air outlet position makes the air of tip cooling down can directly follow last exhaust vent 41 discharge for piston 231 and cylinder body 23 lower extreme, the gas for valve plate 22 and cylinder body 23 upper end cooling can be discharged along the inside wall of the outer wall runner connecting portion 4 of cylinder body 23 and from recess 43 under the effect of air current, if the position of going up exhaust vent 41 sets up too high, gas is direct to be discharged from the last exhaust vent 41 of connecting portion 4 front and back side, can't flow to the inside wall department of connecting portion 4 and cool down cylinder body 23 and valve plate 22 of this department, if remove recess 43 structure, then the high-temperature gas that forms after part is heated can pile up the downside department at valve plate 22 and can't in time discharge, influence holistic radiating effect.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope defined by the claims of the present invention.

Claims

1. An air compressor comprises a motor (1), an air cylinder (2) and a cylindrical box body (3), wherein the inner end part of the box body (3) is connected with the end part of the motor (1), a connecting part (4) communicated with the box body (3) is formed at the upper end of the box body (3), the connecting part (4) is connected with the air cylinder (2), a radiating fan (6) and a connecting rod (7) for driving the air cylinder (2) to work are arranged in the box body (3), the lower end part of the connecting rod (7) is rotatably connected with a driving shaft (11) of the motor (1) through an eccentric wheel (8), the radiating fan (6) is arranged at the outer side of the eccentric wheel (8) and is fixedly connected with the driving shaft (11) of the motor (1), the air compressor is characterized in that an upper air outlet hole (41) is arranged on the front side surface, the rear side surface and the inner side surface of the connecting part (4), and a, the front side of connecting portion (4) is equipped with air exit (42) with connecting portion (4) inner chamber intercommunication, the lower extreme opening of air exit (42) and with box (3) intercommunication, the outer end of box (3) can be dismantled and be fixed with the cover body (5), the lower tip of the cover body (5) is equipped with air intake (51) with box (3) complex, the upper end of the cover body (5) inwards buckles and forms kink (52) that can cover cylinder (2) up end.

2. The air compressor of claim 1, wherein: the box body (3) is provided with two ends which are symmetrically fixed at the left end and the right end of the motor (1), and each box body (3) is connected with a cylinder (2).

3. The air compressor of claim 1, wherein: the motor mounting structure is characterized in that a plurality of mounting protrusions (32) are formed on the inner side face of the inner end portion of the box body (3), the length direction of the mounting protrusions (32) is parallel to the central axis direction of the box body (3), the mounting protrusions (32) are arranged at intervals along the circumferential direction of the inner side face of the box body (3), and clamping grooves (321) used for mounting a motor (1) are formed in the inner end portion of the mounting protrusions (32).

4. The air compressor of claim 3, wherein: the lower air outlet holes (31) are formed in the front side and the rear side of the box body (3) and located between the two adjacent mounting protrusions (32).

5. The air compressor of claim 1, wherein: be fixed with the vertical radiating fin of polylith (213) on the up end of cylinder (2), radiating fin (213) set up and radiating fin (213)'s length direction is parallel with the axis direction of box (3) along the fore-and-aft direction interval, be equipped with polylith deflector (521) on the downside of kink (52), between two adjacent radiating fin (213) are located deflector (521), both sides are all buckled down and are formed baffle (522) around kink (52).

6. The air compressor of claim 5, wherein: a heat dissipation hole (523) which penetrates through the bending part (52) up and down is arranged between two adjacent guide plates (521), the heat dissipation hole (523) is in a long strip shape, and the length direction of the heat dissipation hole is parallel to the length direction of the guide plates (521).

7. The air compressor of claim 1, wherein: the air inlet (51) and the cover body (5) between the bending part (52) are provided with air suction holes (53) at intervals along the vertical direction, and the lower edge of each air suction hole (53) is inwards extended and formed with an air suction plate (54) with a low outer part and a high inner part.

8. The air compressor of claim 5 or 6, wherein: cylinder (2) are including cylinder cap (21), valve plate (22) and cylinder body (23), cylinder cap (21) and cylinder body (23) are through valve plate (22) sealing connection, be equipped with on valve plate (22) with intake port (221) of intake chamber (211) intercommunication of cylinder cap (21) and with venthole (222) of the venthole chamber (212) intercommunication of cylinder cap (21), the upper end of cylinder cap (21) is located in radiating fin (213), be equipped with piston (231) in cylinder body (23), the lower extreme of piston (231) links to each other with the upper end of connecting rod (7).

9. The air compressor of claim 8, wherein: go up the downside that the upper end of exhaust vent (41) was located border on cylinder body (23), the lower extreme that goes up exhaust vent (41) is located the downside on border under cylinder body (23), be equipped with recess (43) that run through the inside wall of connecting portion (4) along the axis direction of box (3) on the up end of connecting portion (4) inside wall.